Electron-Hole Liquids in Transition Metal Oxide Heterostructures

Details Electron-Hole Liquids in Transition Metal Oxide Heterostructures Electron-Hole Liquids in Transition Metal Oxide Heterostructures

2010-04-25

arxiv.org/abs/1004.4354v1

Physical Review B82 073101 (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevB.82.073101

Appropriately designed transition metal oxide heterostructures involving small band gap Mott insulators are argued to support spatially separated electron and hole gasses at equilibrium. Spatial separations and carrier densities favoring the formation of excitonic states are achievable. The excitonic states may exhibit potentially novel properties. Energetic estimates are given, candidate material systems are discussed, and the possibility of large photvoltaic effects is mentioned

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